Redis性能大幅提升之Batch批量讀寫詳解

public ListStudentEntity> Get(Listint> ids)
{
  ListStudentEntity> result = new ListStudentEntity>();
  try
  {
   var db = RedisCluster.conn.GetDatabase();
   foreach (int id in ids.Keys)
   {
    string key = KeyManager.GetKey(id);
    var dic = db.HashGetAll(key).ToDictionary(k => k.Name, v => v.Value);
    StudentEntity se = new StudentEntity();
    if (dic.Keys.Contains(StudentEntityRedisHashKey.id.ToString()))
    {
     pe.id = FormatUtils.ConvertToInt32(dic[StudentEntityRedisHashKey.id.ToString()], -1);
    }
    if (dic.Keys.Contains(StudentEntityRedisHashKey.name.ToString()))
    {
     pe.name= dic[StudentEntityRedisHashKey.name.ToString()];
    }
    result.Add(se);
   }
   catch (Exception ex)
   {
   }
   return result;
}

var batch = db.CreateBatch();

...//這里寫具體批量操作的方法

batch.Execute();

public bool InsertBatch(ListStudentEntity> seList)
{
  bool result = false;
  try
  {
   var db = RedisCluster.conn.GetDatabase();
   var batch = db.CreateBatch();
   foreach (var se in seList)
   {
    string key = KeyManager.GetKey(se.id);
    batch.HashSetAsync(key, StudentEntityRedisHashKey.id.ToString(), te.id);
    batch.HashSetAsync(key, StudentEntityRedisHashKey.name.ToString(), te.name);
   }
   batch.Execute();
   result = true;
  }
  catch (Exception ex)
  {
  }
  return result;
}

public ListStudentEntity> GetBatch(Listint> ids)
{
  ListStudentEntity> result = new ListStudentEntity>();
  ListTaskStackExchange.Redis.HashEntry[]>> valueList = new ListTaskStackExchange.Redis.HashEntry[]>>();
  try
  {
   var db = RedisCluster.conn.GetDatabase();
   var batch = db.CreateBatch();
   foreach(int id in ids)
   {
    string key = KeyManager.GetKey(id);
    TaskStackExchange.Redis.HashEntry[]> tres = batch.HashGetAllAsync(key);
    valueList.Add(tres);
   }
   batch.Execute();

   foreach(var hashEntry in valueList)
   {
    var dic = hashEntry.Result.ToDictionary(k => k.Name, v => v.Value);
    StudentEntity se= new StudentEntity();
    if (dic.Keys.Contains(StudentEntityRedisHashKey.id.ToString()))
    {
     se.id= FormatUtils.ConvertToInt32(dic[StudentEntityRedisHashKey.id.ToString()], -1);
    }
    if (dic.Keys.Contains(StudentEntityRedisHashKey.name.ToString()))
    {
     se.name= dic[StudentEntityRedisHashKey.name.ToString()];
    }
    result.Add(se);
   }
  }
  catch (Exception ex)
  {
  }
  return result;
}

public void TestBatchSent()
  {
   using (var muxer = Config.GetUnsecuredConnection())
   {
    var conn = muxer.GetDatabase(0);
    conn.KeyDeleteAsync("batch");
    conn.StringSetAsync("batch", "batch-sent");
    var tasks = new ListTask>();
    var batch = conn.CreateBatch();
    tasks.Add(batch.KeyDeleteAsync("batch"));
    tasks.Add(batch.SetAddAsync("batch", "a"));
    tasks.Add(batch.SetAddAsync("batch", "b"));
    tasks.Add(batch.SetAddAsync("batch", "c"));
    batch.Execute();
    
    var result = conn.SetMembersAsync("batch");
    tasks.Add(result);
    Task.WhenAll(tasks.ToArray());
    
    var arr = result.Result;
    Array.Sort(arr, (x, y) => string.Compare(x, y));
    ...
   }
  }